Liquid meter



July 3, 1923;

R. s. BASSET'T' LIQUID METER Filed June 1, 1921 ,C 0 INVENTOQ Patented July 3, 1923.

UNITED STATES ROBERT S. BASSETT, OF BUFFALO, NEW YORK.-

LIQUID METER.

Application filed June 1, 1921. Serial 110. 474,150.

To all whom it may come'm:

Be it known that I, Ronnn'r S. Bassn'rr, a citizen of the United States of America, and a resident of the cit of Buffalo, county of Erie, and State of ew York, have invented certain new and useful Improvements in Liquid Meters, of which the following is a full, clear, and exact description.

My invention relates generally to meters used in the measurement of liquids and more particularly to the disc type of meter.

The principal object of my invention has been to provide an interchangeable driver pinion shaft bushing, which can be accurately machined at the factory and convenientlyinstalled as a repair part where the meters are being used.

Another object has been to provide "such a bushing which will also act as a roller post and thrust bearing, so that when the bearing for the driver pinion shaft is renewed the roller post and thrust hearing will also be renewed.

'Another object has been to provide a bushin which may be inserted into the gear p ate from the bottom thereof, thus preventing an upward, axial movement of the bushing when undue pressure is caused in the disc pin recess of the meter, as, for instance, by the (partial or complete freezing of the liqui in the meter. Another advantage resulting from this construction is that-the gear plate may be provided with an integral overhanging arm, which permits erfect alinement of the bearings of the driver pinion shaft; This also reduces the number of parts and simplifies the construction..

Another object has been to provide a meter of such a design that minimum damage will be caused to the meterby the freezing of the liquid which it contains.

My meter is so designed that a predeterminedless expensive part will fail thus releasing the internal measuring mechanism from its fixed position, without damage thereto.

Another object has been to provide a bearing insert made of suitable bearing material mounted in a metallic bushing which is so formed that it will positively hold the bearing insert against downward axial displacement, relative to the bushing.

The above objects and advantages have been accomplished by the device shown in the accompanying drawings of which:

Fig. 1 shows a longitudinal, sectional view through my complete device.

Fig. 2 shows a bottom view thereof. Fig. 3 is a sectional elevation of my improved bushing, with its insert.

Fig. 4 shows a fragmentary, sectional view of the yieldable part of the meter after it has been broken by abnormal pressure of the liquid contained with the meter.

Fig. 5 shows a fragmentary, sectional elevation of a modified form of easing which shows the to casing designed to yield under abnormaPpressures.

In the drawings, 10 represents the top whereby, when the bottom casing is forced downwardl and released by an abnormal pressure within the meter, such as freezin of the liquid, the measuring mechanism wil be allowed to move from its fixed ition f without 1n ur1ng the same. Since t e'par'tsy 15 and 16 of the disc chamber are not fas tened together, it will be obvious that these two parts Wlll also be free to separate when freezing occurs.

The top casing 10 is provided with a flange 19 and the bottom casing 11 is likewise provided with a flange 20. These flanges preferably extend around the easing parts and arranged between them is a gasket 21. The bolts 22, for .holding the parts of the casing together, will pass through the flanges and gasket at suitable intervals.

supported by the part 15 thereof is the gear plate 26 of the meter. The gear-plate is provided with an overhanging arm 27 which forms a bearing for the upper end of the driver pinion shaft 28. 29 is the driver pinion shaft bushing which is mounted in the gear plate and projects downwardly into the recess 30 thereof. The bushing 29 is made preferably of tough material, such as may Arranged above the disc chamber and it has to be of considerable size due "to the 7 small.

which servesv as a stop to, prevent upward dislocation of the "bushing, and brings it to a definite position in the gear plate. The

lower portion 33 is of such a. diameter asto provide a bearing and support for the disc pin roller 34. The under side of the flange 32 provides a thrust bearing for the roller.

The bushing 29 is counterbored, whereby a lower supporting flange 35 is provided. Mounted within the counterbore is a bearing insert 36, which may be of any material suitable for the liquids being handled by the meter. As is well known, gutta ercha is one of the best bearing materials or usein connection with water, and'the insert 36 v.is preferably made of this material. .Where the entire bushing is made of gutta percha,

fragile nature of; the material, andv when made of such a size the expansion and con plate. By making the bushing of tough material witha bearing insert, it is possible to make the bearing insert comparatlvely Since this work can be done where the meters are manufactured,- it can be. ac-

curately and carefully performed, and the insert may be. given the proper diameter so that itmay be securely forced into the bushmg. When thus completed, the bushing which may be used as a repair part and may be inserted by theuser without danger of breakage. Furthermore,

with its insert makes a very durable unit,

when inserted, there is no dan er. of'the bushing becoming loose and fa ing out due to expansion or contraction. If ,the insert should become loose due to temperature changes, the lower supporting flange 35'would retain the same in position. It is well known that in this type of, meter, the support for thedisc pin roller wears very rapidly.- In my invention this roller support, beingan integral part of the bushing,'is renewed simultaneously with the renewal'of the bushing, thus reducing the number of arts in the metering construction and malging renewals more inexpensive and easier to make.

40 is the disc in of the usual desi y, which engages wit the driver arm l. T

driver arm is carried at the lower end of the V eeann driver pinion shaft '28 and is rotated by the disc pin in the well known manner. Carried by the shaft 28 is the driver pinion 42 which is connected with a train of gears 43 of the usual and well known type. Mounted .on top. of the top casing 10 is the registering device 44 of my meter. This registering device with-its connected gearing is common and well known in the art and will not, therefore, be further-described.

Obviously, some modifications of the de tails herein shown and described may be made without departing from the spirit of my invention, or the scope of the appended claims; and I do not, therefore, wish to be limited to the exact embodiment herein shown and described, the formdescribed bein merely a preferred embodiment thereof.

aving thus described my invention, what I claim is:

- 1. In a liquid meter, the combination with 1 i a gear, plate, of a driver pinion shaft bush ing engageable with and supported by the" gearplate, and comprisinga metallic shell,

an internal insert supportingflange and a bearing insert supported by saidflange substantially as and. for the purpose described.

2. In a liquid meter, the combination with a gear plate, of a driver pinion shaft bushing comprising a cylindrical part engageab e withthe gear'plate, a shoulder beneath the cylindrical, part for engagement with the underside o supporting flange land a bearing insert carried by the bushing substantially as and for i the purpose described.

' 3. In a liquid meter, the combination with an apertured gear plate, of a driver pinion shaft bushing comprising a cylindrical part engageable with the aperture in the gear plate, a roller thrust shoulder and an internal insert su porting flange, and-a bearing insert carrie by the bushing substantially as and for the-purpose described.

the gear plate, an insert 4. In a li uid meter, the combination with I an aperture gear plate, of a driverpini'on shaft bushing, means carried by the plate forsupporting said bushing against downward axial displacement and an overhan ing arm forming an'integral part of said gear plate, said overhanging arm comprisinga bearing axially concentric with said and for the purpose descri d.

In testimony signed my'name.

- oar; s, nassn'rr.

whereof, I have hereunto driver pinion shaft bushin substantially as 

